C.3.3 - Doppler Effect
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Practice Questions
Test your understanding with targeted questions
What happens to the frequency of a sound wave if the source moves towards you?
💡 Hint: Think about how the pitch of a siren changes.
What term describes the change in wavelength for an object moving away from an observer?
💡 Hint: Recall the colors of light on the spectrum.
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Interactive Quizzes
Quick quizzes to reinforce your learning
The Doppler Effect occurs when:
💡 Hint: Think about what needs to move.
True or False: The frequency of sound increases when the source is moving away from the observer.
💡 Hint: Recall how pitch changes when an ambulance passes by.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A spaceship travels away from Earth at a speed of 0.1c (where c is the speed of light). If it emits light at a frequency of 600 THz, calculate the observed frequency on Earth. (Use the Doppler formula for light).
💡 Hint: Think about the principles of redshift.
In a medical ultrasound application, a transducer sends sound waves towards a moving blood vessel at 20 m/s. If the source frequency is 2 MHz, calculate the frequency received by the transducer when the blood vessel is moving towards it at 1 m/s.
💡 Hint: Break down the formula with the right values.
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